The Reliance-class medium endurance cutter USCGC Vigorous (WMEC 627) conducts a replenishment at sea with the Homeland Security Cutter Ocean (HSC-Ocean) in the Atlantic Ocean, July 1, 2026. This milestone evolution marks the first time a Reliance-class medium endurance cutter has utilized the HSC-Ocean platform, an operational innovation initiative designed to extend fleet endurance and maintain cutters on station longer. (U.S. Coast Guard photo by Cmdr. Charles Bare)